Puzzle/Unknown Setters Mini Alphabet Challenge Mystery Cache

A challenge cache situated along the Ulster Way / Old Coach Road trail.  The cache IS at the posted co-ordinates however you MUST complete the challenge below before you can log a find.  Parking is available at the start of the trail as per the listed waypoint N 54° 37.641 / W 005° 42.904 (take care when crossing the road).

Puzzle/Unknown Setters Mini Alphabet Challenge

This is a thank you to all those cache owners who think up puzzle/unknown caches for our amusement (or is that torture - you know who you are!).

It is one of a series of caches placed along The Ulster Way / Old Coach Road.  The Old Coach Road used to allow their Lordships to go by carriage from the grand setting of the Clandeboye Estate to the train station at Helen's Bay without having to come into too much contact with mere peasants.

Nowdays, the area forms part of the Ulster Way and these caches are placed along a section of the Ulster Way which runs from Estate Road to the Ballybarnes or Ballysallagh Road and the Old Coach Road Trail which runs from the Belfast Road to the Ballysallagh Road where it finishes at the bridge.  These sections tend to be especially quiet bar the odd dog walker or mountain biker.

All the caches are situated a short distance from the main track which, while generally in good repair, can get a little mucky in places after extended periods of rain.

The Challenge

To log this cache you must have found 20 puzzle/unknown caches set by 20 different cache owners whose cacher names start with 20 different letters of the alphabet.  You can choose which letters to leave out.  Some letters are rarely used, hence this Mini Alphabet Challenge to make it reasonably feasible.

The Rules

1. You must have found 20 puzzle/unknown caches set by 20 different cache owners who cacher names start with 20 different letters of the alphabet.
2. Any cache with the question mark icon is allowed, this includes other challenge caches and bonus caches etc.
3. There are no geographical restrictions - puzzle/unknown caches found anywhere count.
4. There are no date restrictions, puzzle/unknown caches found and logged before the publication of this challenge cache, count.
5. The puzzle/unknown cache must be one listed on http://www.geocaching.com and only finds logged on http://www.geocaching.com can be taken into consideration.
6. Please demonstrate this logging requirement any way you see fit, i.e. text in log Initial Letter Used / Placers Name / GC Code / GC Name / Date Found for example A / AMAZO / GC4Q7F3 / Only The Lonely Challenge / 03/05/2014 or create a bookmark list and add the link to same in your log or upload a screenshot of a typed list etc.
7. You are welcome to physically 'find' the cache and sign the log if you haven't yet met Rule #1.  Please log this fact as a 'Write Note' on this listing.  Once you have then met all the requirements, a 'Found It' log can be submitted.

For example, here's my list:-

The Cache

You are looking for a small watertight tab-lock box which contains a further watertight micro sized container in which you will find the log-book.  Please replace the cache EXACTLY as found after logging.

You can check if you qualify for this challenge by clicking here:-

Good luck and enjoy!